chocolateboy

Channels Are Not Enough

... or Why Pipelining Is Not That Easy

Golang Concurrency Patterns for brave and smart.

Intro

Dependency Injection in Ruby 07 Oct 04

Introduction

At the 2004 Ruby Conference, Jamis Buck had the unenviable task to explain Dependency Injection to a bunch of Ruby developers. First of all, Dependency Injection (DI) and Inversion of Control (IoC) is hard to explain, the benefits are subtle and the dynamic nature of Ruby make those benefits even more marginal. Furthermore examples using DI/IoC are either too simple (and don’t convey the usefulness) or too complex (and difficult to explain in the space of an article or presentation). I once attempted to explain DI/IoC to a room of Java programmers (see onestepback.org/articles/dependencyinjection/), so I can’t pass up trying to explain it to Ruby developers.

Thanks goes to Jamis Buck (the author of the Copland DI/IoC framework) who took the time to review this article and provide feedback.

What is Dependency Injection?

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

Based on the Ruby version here, blogged about here by @otobrglez

	function monitorEvents(element) {
	var log = function(e) { console.log(e);};
	var events = [];

	for(var i in element) {
	if(i.startsWith("on")) events.push(i.substr(2));
	}
	events.forEach(function(eventName) {
	element.addEventListener(eventName, log);
	});

	#!/bin/bash

	# === INFO ===
	# altnetworking.sh
	# Description: Run the specified application in a custom networking environment.
	# Uses cgroups to run process(es) in a network environment of your own choosing (within limits!)
	VERSION="0.1.0"
	# Author: John Clark
	# Requirements: Debian 8 Jessie (plus iptables 1.6 from unstable)
	#

	#!/bin/bash

	# === INFO ===
	# NoVPN
	# Description: Bypass VPN tunnel for applications run through this tool.
	VERSION="3.0.0"
	# Author: KrisWebDev
	# Requirements: Linux with kernel > 2.6.4 (released in 2008).
	# This version is tested on Ubuntu 14.04 and 19.10 with bash.
	# Main dependencies are automatically installed.

	#...

	function gitzip() {
	git archive -o [email protected] HEAD
	}

	#... gitzip ZIPPED_FILE_NAME

	# Hello, and welcome to makefile basics.
	#
	# You will learn why `make` is so great, and why, despite its "weird" syntax,
	# it is actually a highly expressive, efficient, and powerful way to build
	# programs.
	#
	# Once you're done here, go to
	# http://www.gnu.org/software/make/manual/make.html
	# to learn SOOOO much more.

	macro protocol {
	case { _ $name:ident { $fn:protocol_fn ... } } => {
	// Probably not a good idea to rely on `__fresh`. Sweet.js should provide
	// some sort of blessed gensym capability.
	letstx $id = [makeValue(__fresh(), #{ here })];
	return #{
	function $name(proto, impl) {
	if (!impl) {
	impl = proto;
	proto = {};